What the outcome of the Viacom v. Google lawsuit might cause???

So, since I have a video clip of South Park on my Myspace, will I get sued? It seems that myspace videos now have more clips from Viacom owned material than Youtube, since it's not Myspace getting sued for this, so will Myspace have to get rid of these video clips if Youtube does end up paying the $1 billion? This kind of stuff is changing everyone's online experience drastically, and why is copyright such a major issue???